Brophmeister - in answering Ffbvfd you have also summed up neatly, the problem Turbo (indeed ANY) CAD poses for the self-teaching newcomer to Computer Aided Draughting.
I agree TC is not a "waste of money"; but.... It's not its unintuitive ways, nor even its sparse, fragmentary Help "manual", that are so off-putting. Rather, industrial-quality CAD software is really for professional users fully trained professionally, in both CAD/CAM basics and the specific software. Consequently the publishers naturally assume for example, the user already knows the significance of 'layers', or understands what is a 'polyline' and why the apparent one on the screen "ain't' necessarily so" - the TC on-line manual merely quotes the icons and fails to mention all the hidden traps for the unwary.
So where do we find help, especially when, unlike Ffbvfd whom I assume is a professional draughts-person, we lack previous experience?
The Forum is a start but not a primer, as most of its contents shows. I have searched, and discovered except maybe for any university text-books unknown, unavailable and probably unaffordable to me, there is no real literature bridging that gap between knowing how to design and draw engineering components or buildings, and knowing how to draw them by computer. CAD places a very deep, additional level of knowledge inside the process, and you need that knowledge even before embarking on the specific CAD package.
I came to TurboCAD as a CAD beginner, an amateur engineer who understands mechanical engineering and how to draw manually. I knew already that CAD can give similar drawings, and has many practical advantages over manual drawing. Also, I had reasonably broad computer-using experience. I bought it through the model-engineering hobby's trade, which also later included a book-seller stocking, separately, two primers on CAD.
The teaching CD packed with the TurboCAD disc, proved useless; but these books are better, although curate's eggs and obviously cannot instruct on specific makes of software. One also copies the software publishers' habit of illustrating what a professional can make CAD do; perhaps impressing the software's intended commercial buyers, but deterring rather than encouraging me.
TurboCAD is very powerful but still only as good as its user, to whom IMSI offers little help . Yes, CAD is very hard to learn, especially alone, but outside of the specific publisher's own forum, there is very, very little help available; and that seems so for CAD generally.
I had hoped TurboCAD would help me regain several square feet of dining-room colonised by an industrial-pattern A0 drawing-board, but I'm afraid that will have to stay, as the crankshaft I depicted on the Gallery months ago needs the company of many other bits still to be drawn ....